cups encryption error

[Steve]

I'm setting up a cups print server (Ubuntu 6.06 Server) in which the lpd protocol is used. I've added printers via the web interface and can print to them from the server. I've then added the printers on the OS X clients so that they point to the server (lpd://server/queue) and opened port 515 (the lpd port) on the server.

When I try to print (test page via cups web interface)on the clients the printer stops and I get the error:

"The process "lpd" stopped unexpectedly with status 1"

and in /var/log/cups/error_log it says:

D [12/Mar/2007:15:14:48 -0400] cupsdCloseClient: 9
D [12/Mar/2007:15:18:28 -0400] cupsdAcceptClient: 9 from 192.222.19.228:515 (IPv4)
I [12/Mar/2007:15:18:28 -0400] Generating SSL server key...
I [12/Mar/2007:15:18:35 -0400] Created SSL server key file "/etc/cups/ssl/server.key"...
I [12/Mar/2007:15:18:35 -0400] Generating self-signed SSL certificate...
I [12/Mar/2007:15:18:36 -0400] Created SSL server certificate file "/etc/cups/ssl/server.crt"...
E [12/Mar/2007:15:18:36 -0400] encrypt_client: Unable to encrypt connection from 192.222.19.228!
E [12/Mar/2007:15:18:36 -0400] encrypt_client: A record packet with illegal version was received.
E [12/Mar/2007:15:18:36 -0400] Bad request line "chter" from 192.222.19.228!
D [12/Mar/2007:15:18:36 -0400] cupsdSendError: 9 code=400 (Bad Request)

Note that 192.222.19.228 is the client IP and "chter" is probably part of the printer name "Schachter-1", so I know the connection is going through. The CUPS web interface on the server says it's version 1.2.2

Any help would be apprieciated!